Yealink SIP-T53W Administrator's Guide

Administrator’s Guide for SIP-T2 Series/T4 Series/T5 Series/CP920 IP Phones
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Example: Setting a Line Key as BLF List Key
The following example shows the configuration for a BLF List key.
Scenario Conditions Related Topic
phone_setting.auto_blf_list_enable = 0 BLF List Configuration
Example
linekey.1.type = 39
linekey.1.line =1
After provisioning, a BLF List key displays on line key 1. You can easily use this key to monitor a remote line. The
monitored line depends on a pre-configured SIP server.
Example: Setting a Line Key as Private Hold Key
The following example shows the configuration for a Private Hold key.
Example
linekey.1.type = 20
linekey.1.label =Private Hold
After provisioning, you can press the line key 1 to hold calls without notifying other phones registered with the
shared line, the shared line displays active to others shared line. It is only applicable to Shared Line Appearance.
Example: Setting a Line Key as Multicast Paging Key
The following example shows the configuration for a Multicast Paging key.
Example
linekey.1.type = 24
linekey.1.value = 224.5.6.20:10008
linekey.1.label = Sales
linekey.1.extension = 2
After provisioning, you can press the line key 1 to send announcements quickly to the Sales group.
Programmable Keys
You can customize programmable keys on the phone to enable users to access frequently used functions, or, if
your phone does not have a particular hard key, you can create a soft key. For example, if the phone does not have
a Do Not Disturb hard key, you can create a Do Not Disturb soft key.
The programmable key takes effect only when the IP phone is idle.
Topics
Supported Programmable Keys
Programmable Keys Configuration
Supported Programmable Keys
The following tables list programmable keys for each phone model.

Yealink SIP-T53W Specifications

General

Mounting	Desk/Wall
Handset type	Wired handset
Product type	IP mobile phone
Product color	Gray
Keypad illumination	Yes
Wi-Fi standards	802.11a, 802.11g, Wi-Fi 4 (802.11n)
Bluetooth version	4.2
Security algorithms	AES, HTTPS, SIPS
Networking standards	IEEE 802.1p, IEEE 802.1x, IEEE 802.3af
Ethernet LAN interface type	Gigabit Ethernet
Supported network protocols	FTP/TFTP/HTTP/HTTPS
Dual-Tone Multi-Frequency (DTMF) modes	In-band, Out-of band, SIP info
USB 2.0 ports quantity	1
Ethernet LAN (RJ-45) ports	2
Lines quantity	8 lines
Phonebook capacity	1000 entries
Number of VoIP accounts	12
AC adapter input voltage	100 - 240 V
AC adapter output current	1.2 A
AC adapter output voltage	5 V
Power consumption (typical)	2.3 W
Volume control	Buttons
Number of programmable keys	8
Storage temperature (T-T)	-30 - 70 °C
Operating temperature (T-T)	0 - 40 °C
Operating relative humidity (H-H)	10 - 95 %
Display diagonal	3.7 \
Display resolution	360 x 160 pixels
Cables included	LAN (RJ-45)
Number of handles included	1 pc(s)
Number of DECT wireless handsets	4
Voice codecs	G.722, G.723.1, G.726, G.729A, G.729B, OPUS, iLBC

Weight and Dimensions

Depth	210.6 mm
Width	212 mm
Height	174.5 mm